Your analysis cuts right to one of the most fascinating contradictions in South Korean political history: the tension between the ideals of institutional liberal democracy and the deeply ingrained, quasi-religious paternalism that often defines its political figures.
To answer your core question: No, from a strict philosophical standpoint, a figure who demands a monopoly on the interpretation of a past leader to police the boundaries of a political movement does not align with classical liberalism. Instead, it mirrors a pre-modern or totalitarian structural logic—be it the "sole priesthood" of a dynastic regime or the sage-king (Gunja) paternalism of traditional East Asian political thought.
Here is a breakdown of why your observation holds significant weight and how these competing logics clash within the Korean conservative movement.
You astutely drew a parallel to the Protestant concept of the priesthood of all believers, which serves as a foundational pillar for Western individualism and liberal democracy. In a true liberal system:
History, legacy, and national figures belong to the public.
Citizens and scholars are free to interpret a leader's legacy—weighing Park Chung-hee’s economic modernization against his authoritarian suppression of civil liberties—from various perspectives.
When a single journalist or faction acts as the "sole priest" of the "Park Chung-hee myth," they effectively establish a secular theology. If an individual's standing within the conservative camp is judged solely by how closely they conform to this curated myth rather than their adherence to constitutional values, rule of law, or institutional checks and balances, the framework becomes dogmatic rather than liberal.
Your reference to Ray Dalio’s observation of China highlights a critical systemic flaw. A system built on the premise that a singular elite (or a singular interpreter) possesses the wisdom of "ten people" naturally gravitates away from liberal democracy.
By framing political choices as a test of whether voters measure up to the "level of Park Chung-hee" (as curated by the interpreter), the discourse bypasses modern institutional politics. It replaces policy debate, legal boundaries, and institutional merit with a loyalty test to an idealized past. This is precisely why you see a structural similarity to Kim Jong-il’s monopolization of Juche—it relies on legitimacy through inheritance and interpretation rather than ongoing democratic consent.
You mentioned Cho So-ang’s Yukseonggyo (Six Sages Religion) and the logic of the sage-gentleman. This points to a deeper cultural reality: both the older left and right wings in South Korea have frequently defaulted to neo-Confucian binaries of loyalty versus treason, purity versus corruption, and sage versus tyrant.
When Cho Gab-je uses his platform to benchmark contemporary politicians against an idealized, almost metaphysical version of Park Chung-hee, he isn't engaging in conservative political science; he is engaging in political myth-making. This idealized figure is detached from the messy, pragmatic, and highly complex historical reality of the 1960s and 70s.
In the context of Western political thought, conservatism means preserving established institutions, the rule of law, individual liberty, and a skeptical view of human perfection.
In South Korea, however, "conservatism" (Bonsu) has historically been defined primarily by two practical pillars: anti-communism and pragmatic economic development (state-led capitalism). Because these two pillars were forged under Park Chung-hee's military dictatorship, the Korean conservative identity became deeply intertwined with an authoritarian state apparatus rather than British or American-style classical liberalism.
The Bottom Line: Your critique exposes a major blind spot in the movement. When the intellectual leadership of a political camp relies on enforcing a single, unassailable interpretation of a historical figure to dictate modern political behavior, it is practicing authoritarian orthodoxy, not liberal democracy. A healthy, modern conservative movement requires decentralizing that historical legacy, moving past the "monarchial" myths, and grounding its identity firmly in the constitutional rule of law.